Category Archives: Climatology and Meteorology

Climate Change Expands Western U.S. Forest Fires — With Plenty of Help

Smoke from Arizona's Wallow Fire lends color to an Albuquerque, NM sunset. Photo by John Fowler.
Smoke from Arizona’s Wallow Fire lends color to an Albuquerque, NM sunset. Photo by John Fowler.

Human-induced climate change has doubled forest fire damage in the West over the past 30 years, says a study published online early by the journal PNAS. But human effects on fire extend far beyond climate.

Read/listen to my full story at KJZZ’s Arizona Science Desk:
As Western US Forest Fires Expand, Plenty Of Blame To Go Around

We’re Going to Need New Idioms for This: Record-Breaking Lightning

Cloud-to-cloud lighting.
Cloud-to-cloud lighting. Photo by Fir0002 / Flagstaffotos.

A 200-mile lightning flash and another flash lasting nearly eight seconds have redefined experts’ notions of what is possible for such events.

The new data prompted a World Meteorological Organization committee to recommend revising the definition of lightning discharges.

Read/listen to my full story at KJZZ’s Arizona Science Desk:
Record-Breaking Lightning Flashes Help Change Definition Of Lightning Events

Yellowstone and the Terrible, Horrible, No Good, Very Bad Day

False-color image of Lake Toba, the flooded 19-by-62 mile caldera of a supervolcano that may have jump-started a 10,000-year ice age.
False-color image of Lake Toba, the flooded 19-by-62 mile caldera of a supervolcano that may have jump-started a 10,000-year ice age.

The eruption of Krakatau in 1883 is synonymous with cataclysm, and with good reason. Its eruptive power equated to several thousand atom bombs, and it killed around 36,000 people. But compared to the supervolcanoes that nearly wiped out humanity, or that may yet spell global catastrophe, it was a wet squib.

Find out about the magma doom machine buried under America’s oldest national park as I take you on a tour of …

How Supervolcanoes Work

Of Mammoths Wild and Woolly

Woolly mammoth skeleton at the Smithsonian Natural History Museum. Photo by Kevin Burkett.
Woolly mammoth skeleton on display at the Smithsonian Natural History Museum. Photo by Kevin Burkett.

We love dinosaurs, but we never shared the planet with them. Such was not the case with woolly mammoths, which we once hunted, chowed down on, and used for tools and building materials. You don’t see T-Rexes on cave walls, but some of the earliest sculpture and art by human hands depicts these elephantine throw rugs.

Today, their well-preserved remains contain muscle, blood, teeth, bone, tusk and even brain. We’ve recovered and sequenced mammoth DNA, something we’ll never be able to do with dinosaurs. But if all you know about these majestic creatures comes from old Flintstones episodes, then join me as I explore …

How Woolly Mammoths Worked